PR #249 merged: chore(release): 2.13.0

Minor release rolling up tonight's issue-clearing run:

• #233/#245 scheduled_tasks run_once (also closed #208)
• #238/#246 deploy wait polling
• #239/#241 diagnose_app stale-code detection
• #235/#244 create_dockerfile (compose variant impossible upstream since v4.1.0)
• #234/#243 command-length validation + bodyless-error hints
• #236/#247 OpenAPI spec refresh + client-vs-spec drift CI check
• #164 multi-server README documentation

Merging bumps package.json on main → triggers npm publish.

🤖 Generated with Claude Code